二阶
second order
Traditional: 二階
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📖 Additional Information
English Phonetic:
'sekәnd
Detailed Definition:
n. 1/60 of a minute; the basic unit of time adopted under the Systeme International d'Unites\nn. following the first in an ordering or series\nn. a 60th part of a minute of arc\nn. the official attendant of a contestant in a duel or boxing match